The act of cawing and flapping your arms like a raven while penetrating a female (or male) in the ass. It is key to caw louder the deeper you go to achieve maximum raven flapping. After you have blown your raven load you position the female (or male) on all fours and “peck” your semen out of their ass, letting out a loud raven-like coo after swallowing.
Rob was ravenflapping the shit out of her last night after that big wedding. Thomas looked on in admiration and slight jealousy.
Flaking is what a Nikos does when he make plans with his friends, yet fails to show up last minute. This usually includes the Nikos leaving his friends on read and not telling them about changed plans beforehand.
"Yo, this Nikos is flaking on us today again! That's the sixth time this week, bruh. What an asshole."